15. Consider the curve defined by f(x) = tan(x) on the interval - TT TT 3 ' 6 . Set up the integral that calculates the length of this curve by integrating with respect to y: A. V1 + sec2(y) dy 1 B. 1 + 1 - 72 dy 3 2 C.Vit 1 1 + 2 dy 3 1 D. 1 + 1 - 12 dy 2 E. V1+ (1 1 1+2 dy 3 F. V1 + sec? (y) dy V3